摘要
为研究河网断面优化对调蓄能力的影响,选取山东省淄博市高青县典型水环境区域,建立以纳维—斯托克斯方程和圣维南方程为基础的河网水动力模型,模拟高青县现有河网遭遇20年一遇洪水,研究区内河道水位响应情况,部分河段过水能力不足,洪水溢出,针对这些河段进行断面优化,再次模拟优化后的河网在洪水条件下的水位响应情况,基本满足行洪能力。研究结果表明,断面优化能够有效地改善河网调蓄能力,并针对区域洪涝防治工作提出有效防控措施,为提升城市防洪能力和生态功能提供有价值的科学技术支持。
To study the influence of the river cross-section optimization on storage capacity, based on navier-stokes equations and Saint Venant equations, this paper built the hydrodynamic model and modeled the water level response when river network in Gaoqing suffered 5% frequency flood. Part of the river water capacity were insufficient, and the flood overflow.According to this phenomenon, we optimized river section and simulated again, and then met the flood discharge capacity basicly. The results show that the cross-section optimization can effectively improve the river network storage capacity. Effective prevention and control measures are put forward based on regional flood control work. This paper improves the capacity of city flood control and ecological function and provides the valuable support of science and technology.
出处
《水科学与工程技术》
2017年第5期15-20,共6页
Water Sciences and Engineering Technology
关键词
高青县
河网
断面优化
调蓄
数值模拟
Gaoqing county
river-network
cross-section optimization
storage capacity
numerical modeling
